Aball is right. I have the Altos in a 2.6 x 4.6 meter room and they do superbly. The Divas are fine speakers but the reflecting woofers at the bottom would be a problem in a small room for me, and I actually preferred the Electra 937Bes over the Divas for that reason. In a small space, I believe that a good directional speaker is better. I too bought the Altos without actually listening to them, but having heard the Divas, the Micros and the Electras, I didn't think I'd have much of a problem with them and I don't. They do superbly for me. I"m sure most of the posters are right about the Audio Physics. Those speakers don't look as well put together as the Utopia line. I would however, state that the Electra 927Bes are not very impressive. Having to choose, I'd take the Altos, 937Bes, and Divas in that order. Hope this helps.